Oh My Goddess Omnibus 2 collects volumes 4-6 and features story and art by Kosuke Fujishima.

It seems Keiichi's life wasn't complicated enough with Belldandy's magic and Urd's potions, so now the third of the goddess sisters, Skuld, is here with her personal form of weirdness - engineering! No sooner has she arrived at Nekomi Tech than Skuld appoints Keiichi's own little sister Megumi to be her archrival and challenges her to a robot battle... to the death? Plus, as a special bonus, the universe will be destroyed when the superstring holding together existence is cut by a ten-dimensional scythe... unless the goddesses can stop it.